Upgrade and set up for native

.gitignore

@@ -7,3 +7,6 @@ build/
 
 # Directory created by dartdoc
 doc/api/
+
+# Native build artifacts
+dist/

pubspec.lock

@@ -1,34 +1,34 @@
 # Generated by pub
-# See https://www.dartlang.org/tools/pub/glossary#lockfile
+# See https://dart.dev/tools/pub/glossary#lockfile
 packages:
   analyzer:
     dependency: "direct main"
     description:
       name: analyzer
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.36.0"
+    version: "0.36.4"
   args:
     dependency: "direct main"
     description:
       name: args
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.1"
+    version: "1.5.2"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.4.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   charcode:
     dependency: transitive
     description:
@@ -42,49 +42,70 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
+    version: "1.14.12"
   convert:
     dependency: transitive
     description:
       name: convert
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
+  coverage:
+    dependency: transitive
+    description:
+      name: coverage
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.3+3"
   crypto:
     dependency: transitive
     description:
       name: crypto
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.6"
+    version: "2.1.4"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.16.1"
   front_end:
     dependency: transitive
     description:
       name: front_end
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.15"
+    version: "0.1.19"
   glob:
     dependency: transitive
     description:
       name: glob
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.7"
+    version: "1.2.0"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.14.0+3"
   http:
     dependency: transitive
     description:
       name: http
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.0+1"
+    version: "0.12.0+2"
   http_multi_server:
     dependency: transitive
     description:
       name: http_multi_server
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.5"
+    version: "2.1.0"
   http_parser:
     dependency: transitive
     description:
@@ -106,69 +127,83 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.1+1"
-  json_rpc_2:
+  kernel:
     dependency: transitive
     description:
-      name: json_rpc_2
+      name: kernel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.10"
-  kernel:
+    version: "0.3.19"
+  logging:
     dependency: transitive
     description:
-      name: kernel
+      name: logging
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.15"
+    version: "0.11.3+2"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.5"
+    version: "0.12.6"
   meta:
     dependency: "direct main"
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.7"
+    version: "1.1.8"
   mime:
     dependency: transitive
     description:
       name: mime
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.6+2"
+    version: "0.9.6+3"
   mockito:
     dependency: "direct dev"
     description:
       name: mockito
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.0.0"
+    version: "4.1.1"
   multi_server_socket:
     dependency: transitive
     description:
       name: multi_server_socket
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
+  node_interop:
+    dependency: transitive
+    description:
+      name: node_interop
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
+  node_io:
+    dependency: transitive
+    description:
+      name: node_io
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1+2"
   node_preamble:
     dependency: transitive
     description:
       name: node_preamble
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.4.4"
+    version: "1.4.8"
   package_config:
     dependency: transitive
     description:
       name: package_config
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.1.0"
   package_resolver:
     dependency: transitive
     description:
@@ -182,14 +217,14 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.2"
+    version: "1.6.4"
   pedantic:
     dependency: "direct dev"
     description:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.0"
+    version: "1.9.0"
   pool:
     dependency: transitive
     description:
@@ -210,7 +245,7 @@ packages:
       name: shelf
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.7.4+1"
+    version: "0.7.5"
   shelf_packages_handler:
     dependency: transitive
     description:
@@ -231,7 +266,7 @@ packages:
       name: shelf_web_socket
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.2+5"
+    version: "0.2.3"
   source_map_stack_trace:
     dependency: transitive
     description:
@@ -273,7 +308,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.0.5"
   term_glyph:
     dependency: transitive
     description:
@@ -287,55 +322,55 @@ packages:
       name: test
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.1"
+    version: "1.9.4"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.4"
+    version: "0.2.11"
   test_core:
     dependency: transitive
     description:
       name: test_core
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.3"
+    version: "0.2.15"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.6"
-  vm_service_client:
+  vm_service:
     dependency: transitive
     description:
-      name: vm_service_client
+      name: vm_service
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.6+1"
+    version: "2.1.3"
   watcher:
     dependency: transitive
     description:
       name: watcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.7+10"
+    version: "0.9.7+13"
   web_socket_channel:
     dependency: transitive
     description:
       name: web_socket_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.12"
+    version: "1.1.0"
   yaml:
     dependency: transitive
     description:
       name: yaml
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.15"
+    version: "2.2.0"
 sdks:
-  dart: ">=2.2.0 <3.0.0"
+  dart: ">=2.6.0 <3.0.0"

pubspec.yaml

@@ -7,7 +7,7 @@ executables:
   dcdg:
 
 environment:
-  sdk: '>=2.2.0 <3.0.0'
+  sdk: '>=2.6.0 <3.0.0'
 
 dependencies:
   analyzer: ^0.36.0